Question 1

Where is Isetan Shinjuku?

Accepted Answer

Isetan Shinjuku is in Shinjuku, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of There's No Freaking Way I'll be Your Lover! Unless... does Isetan Shinjuku appear in?

Accepted Answer

Isetan Shinjuku appears in EP3 of There's No Freaking Way I'll be Your Lover! Unless....

Question 3

Can I visit Isetan Shinjuku?

Accepted Answer

Yes. Isetan Shinjuku is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was There's No Freaking Way I'll be Your Lover! Unless... filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Isetan Shinjuku is one of those real places (EP3).